iTextSharp.text.pdf.PdfName.Equals C# (CSharp) Метод

        public override bool Equals(Object obj) {
            if (this == obj)
                return true;
            if (obj is PdfName)
                return CompareTo(obj) == 0;
            return false;
        }
    

        // ---------------------------------------------------------------------------
        /**
         * Manipulates a PDF file src with the byte array as result
         */
        public byte[] ManipulatePdf(byte[] pdf)
        {
            PdfName key = new PdfName("ITXT_SpecialId");
              PdfName value = new PdfName("123456789");
              // Read the file
              PdfReader reader = new PdfReader(pdf);
              int n = reader.XrefSize;
              PdfObject pdfObject;
              PRStream prStream;
              // Look for image and manipulate image prStream
              for (int i = 0; i < n; i++) {
            pdfObject = reader.GetPdfObject(i);
            if (pdfObject == null || !pdfObject.IsStream()) continue;

            prStream = (PRStream) pdfObject;
            byte[] imageBytes;
            if (value.Equals(prStream.Get(key))) {
              PdfImageObject image = new PdfImageObject(prStream);
              using (System.Drawing.Image original = image.GetDrawingImage()) {
            if (original == null) continue;
            int width = (int)(original.Width * FACTOR);
            int height = (int)(original.Height * FACTOR);

            using (System.Drawing.Image thumb = new Bitmap(width, height) ) {
              using ( Graphics graphic = Graphics.FromImage(thumb) ) {
                graphic.DrawImage(original, 0, 0, width, height);
                using (MemoryStream ms = new MemoryStream()) {
                  thumb.Save(ms, ImageFormat.Jpeg);
                  imageBytes = ms.ToArray();
                }
              }
            }
            prStream.Clear();
            prStream.SetData(imageBytes, false, PRStream.NO_COMPRESSION);
            prStream.Put(PdfName.TYPE, PdfName.XOBJECT);
            prStream.Put(PdfName.SUBTYPE, PdfName.IMAGE);
            prStream.Put(key, value);
            prStream.Put(PdfName.FILTER, PdfName.DCTDECODE);
            prStream.Put(PdfName.WIDTH, new PdfNumber(width));
            prStream.Put(PdfName.HEIGHT, new PdfNumber(height));
            prStream.Put(PdfName.BITSPERCOMPONENT, new PdfNumber(8));
            prStream.Put(PdfName.COLORSPACE, PdfName.DEVICERGB);
              }
            }
              }
              // Save altered PDF
              using (MemoryStream ms = new MemoryStream()) {
            using (PdfStamper stamper = new PdfStamper(reader, ms)) {
            }
            return ms.ToArray();
              }
        }